Quercetin Phytosome delivers powerful antioxidant protection with highly bioavailable quercetin, supporting immune balance and healthy inflammatory response through a sunflower phospholipid phytosome that boosts absorption. The phytosome bound quercetin helps the body utilise more of the active ingredient. This Thorne Research formulation reflects our commitment to purity and rigorous quality standards.

Available Sizes & Variants:

60 Veg Caps - Great monthly supply for daily support.

Benefits & Features:

• It's designed for daily use.
• It supports immune balance by helping to modulate histamine release in daily life.
• Phytosome bound quercetin boosts absorption, so you get more from each capsule.
• Quercetin acts as a potent antioxidant, helping protect cells from daily oxidative stress while the phytosome delivery system enhances absorption, meaning you can rely on better utilisation from each capsule.
• Vegetarian capsules make staying on track easy for many dietary preferences.

Quercetin Phytosome uses a proprietary delivery system that binds quercetin from Sophora japonica flower extract to sunflower phospholipids, delivering up to twenty times higher bioavailability than standard quercetin extracts. This approach reflects Thorne Research's commitment to quality and innovative formulations. The plant flavonoid acts as an antioxidant and helps support immune balance, while the easy vegetarian capsules make daily use simple. For broader wellness routines, some customers pair quercetin with berberine, probiotics for gut health, or n acetylcysteine.

Quercetin Phytosome

• GTIN: 693749004356
• Manufacturer: Thorne
• Categories: Gout Supplements & VitaminsLung & Respiratory SupplementsNew ArrivalsPhyto Perfumes & FragrancesPopular Supplement BrandsQuercetin SupplementsThorne Supplements
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take one capsule with meals two to three times daily, or follow your health professional's advice.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Quercetin Phytosome

Quercetin is a natural flavonoid with antioxidant properties that helps shield cells from oxidative stress. The phytosome form pairs quercetin with a sunflower phospholipid complex sourced from Sophora japonica flower extract, which boosts oral bioavailability versus standard quercetin extracts.

This delivery approach improves absorption and utilisation of the active ingredient in the body, supporting its role as a plant-derived antioxidant within everyday physiological processes.

What Does Quercetin Phytosome Do?

Quercetin Phytosome helps maintain cellular redox balance and supports immune function through its antioxidant activity. It also plays a part in stabilising membranes and modulating responses related to everyday oxidative stress, as described in EFSA-aligned nutrient function interpretations.

Overall, the combo of quercetin with phytosome technology supports the body's usual handling of oxidative stress and inflammatory responses.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Why Thorne Research Quercetin Phytosome is Welzo chosen

Our medical team picked Thorne Research for this supplement because of the brand’s science-led formulation approach. The Quercetin Phytosome product uses a proprietary phytosome technology, linking quercetin to a sunflower phospholipid complex, which Thorne describes as boosting bioavailability up to 20 times compared with standard quercetin extracts. This degree of formulation sophistication aligns with Welzo’s emphasis on scientific rigour and transparent product architecture. our medical team evaluated the brand and product against the standards we require, prioritising credibility, traceability, and advanced manufacturing science, reinforced by the certifications we require.

Thorne Research’s focus on a plant-based phytosome approach offers a compelling product-specific fit for this quercetin formulation, and the brand’s emphasis on high-quality ingredients complements Welzo’s commitment to quality and safety in the UK market. This blend supports our decision to partner with Thorne Research for this supplement, reflecting our brand evaluation process and focus on rigorous, approachable science.